发明名称 |
ANTENNA ARRAY FOR AN RFID READER COMPATIBLE WITH TRANSPONDERS OPERATING AT DIFFERENT CARRIER FREQUENCIES |
摘要 |
<p>An antenna array is provided for an RFID reader, which includes a first read er antenna tuned to operate at a first frequency and a second reader antenna tuned to operate at a second frequency different from the first frequency. They first and second antennas are preferably arranged in an overlapping arrangement or an opposing magnetic flux arrangement to reduce the effect of antenna self resonance.</p> |
申请公布号 |
CA2507277(A1) |
申请公布日期 |
2005.11.18 |
申请号 |
CA20052507277 |
申请日期 |
2005.05.13 |
申请人 |
ASSA ABLOY IDENTIFICATION TECHNOLOGY GROUP AB |
发明人 |
QUAN, RALPH W. |
分类号 |
G06K7/08;(IPC1-7):G01S7/42;G01S13/74 |
主分类号 |
G06K7/08 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|